Issue |
Europhys. Lett.
Volume 65, Number 1, January 2004
|
|
---|---|---|
Page(s) | 68 - 74 | |
Section | Condensed matter: electronic structure, electrical, magnetic, and optical properties | |
DOI | https://doi.org/10.1209/epl/i2003-10042-2 | |
Published online | 01 December 2003 |
Optical conductivity of a quasi–one-dimensional system with fluctuating order
Institut für Theoretische Physik, Universität Frankfurt Robert-Mayer-Str. 8, Postfach 111932, 60054 Frankfurt, Germany
Received:
18
August
2003
Accepted:
20
October
2003
We describe a formally exact method to calculate the optical conductivity of a one-dimensional system with fluctuating order. For classical phase fluctuations we explicitly determine the optical conductivity by solving two coupled Fokker-Planck equations numerically. Our results differ considerably from perturbation theory and, in contrast to Gaussian order parameter fluctuations, show a strong dependence on the correlation length.
PACS: 71.23.-k – Electronic structure of disordered solids / 71.45.Lr – Charge-density-wave systems / 72.80.-r – Conductivity of specific materials
© EDP Sciences, 2004
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